Remove Extra Clicks Numbers... How to i block extra Clicks?

Question

If I clicked on submit Button it's show me

1 : line number one
2 : line number two
3 : line number three etc.

But if i clicked on submit Button more time, its show me...

1 : 1 : 1 : 1 : line number one
2 : 2 : 2 : 2 : line number two
3 : 3 : 3 : 3 : line number three....

I don't need more clicks, please block extra clicks ...

https://code.sololearn.com/WCtxdaj3X480/?ref=app

Answer 1

You can add the following line after "textArea.value=text",

btn.disabled=true;

or add the following line if you don't want to disable the button.

btn.onclick=null;

Answer 2

Thankd Again.

Answer 3

Ayesha Noor

You can add flag also to apply click only once.

https://code.sololearn.com/Wc4G5aDov93H/?ref=app